COMS_SETTYPE_INT_EXT_MAPPING is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Mapping of External Category to Internal Set Type" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately. i.e. DATA: wa_COMS_SETTYPE_INT_EXT_MAPPING TYPE COMS_SETTYPE_INT_EXT_MAPPING.
The COMS_SETTYPE_INT_EXT_MAPPING table consists of various fields, each holding specific information or linking keys about Mapping of External Category to Internal Set Type data available in SAP. These include SETTYPE_ID (Set Type ID: Internal Format), SETTYPE_GUID (GUID of a Set Type (16 Characters))... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .